Prepare against Iwo Karolczuk
IM · Poland · World #2,196 classical · FIDE ID 21816972
When preparing against Iwo Karolczuk, expect 1.e4 in 46% of White games. Against 1.e4 the reply is 1...c5 (69% of games); against 1.d4, 1...Nf6 (98%). Lowest win rate among frequent openings: Queen's Indian Defense as Black, 6.7% over 15 games.
Our database contains 741 games by Iwo Karolczuk, covering Jun 2015 to Aug 2026. Below you'll find Iwo Karolczuk's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Iwo Karolczuk before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 2,373 | 2,406 | Aug 2025 |
| Rapid | 2,383 | 2,383 | Aug 2026 |
| Blitz | 2,361 | 2,369 | Sep 2023 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 741 | 337 | 187 | 217 | 45.5% |
| As White | 376 | 186 | 97 | 93 | 49.5% |
| As Black | 365 | 151 | 90 | 124 | 41.4% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Iwo Karolczuk's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Iwo Karolczuk's side.
First moves as White (376 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 172 | 45.7% | 67.4% |
| d4 | 143 | 38.0% | 53.1% |
| Nf3 | 35 | 9.3% | 78.6% |
| c4 | 15 | 4.0% | 53.3% |
| b3 | 6 | 1.6% | 33.3% |
| g3 | 2 | 0.5% | 100.0% |
Main lines as White
- 1.e4 — 46% of White games, 67.4% score
- …c5 (48% of these games) — Karolczuk usually continues Nf3 (65.4% score)
- …e5 (19% of these games) — Karolczuk usually continues Nf3 (71.4% score)
- …c6 (13% of these games) — Karolczuk usually continues d4 (77.3% score)
- 1.d4 — 38% of White games, 53.1% score
- …Nf6 (65% of these games) — Karolczuk usually continues c4 (61.3% score)
- …d5 (24% of these games) — Karolczuk usually continues Nf3 (46.7% score)
- …d6 (3% of these games) — Karolczuk usually continues e4 (33.3% score)
As Black against 1.e4 (180 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 125 | 69.4% | 54.4% |
| e5 | 25 | 13.9% | 50.0% |
| e6 | 17 | 9.4% | 47.1% |
| d6 | 7 | 3.9% | 71.4% |
| g6 | 5 | 2.8% | 60.0% |
| a6 | 1 | 0.6% | 0.0% |
As Black against 1.d4 (129 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 126 | 97.7% | 56.0% |
| e6 | 2 | 1.6% | 50.0% |
| d6 | 1 | 0.8% | 100.0% |
Iwo Karolczuk's chess games
All 741 games by Iwo Karolczuk in the Chess.ceo database (Jun 2015 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 337 wins, 187 draws, 217 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A62 | Catalan | 31 | 20/4/7 | 64.5% |
| B23 | Sicilian: Closed | 28 | 20/4/4 | 71.4% |
| E14 | Indian Defense | 21 | 8/5/8 | 38.1% |
| A48 | King's Indian Defense | 20 | 10/5/5 | 50.0% |
| A07 | Réti Opening | 19 | 13/4/2 | 68.4% |
| B40 | Sicilian | 18 | 8/5/5 | 44.4% |
| D12 | Slav Defense | 16 | 2/11/3 | 12.5% |
| B31 | Sicilian: Rossolimo | 14 | 6/5/3 | 42.9% |
| D30 | Queen's Pawn Game | 10 | 4/4/2 | 40.0% |
| B86 | Sicilian: Najdorf | 9 | 6/0/3 | 66.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B41 | Sicilian | 47 | 18/12/17 | 38.3% |
| B90 | Sicilian: Najdorf | 37 | 20/5/12 | 54.1% |
| B51 | Sicilian: Moscow Variation | 23 | 10/3/10 | 43.5% |
| A46 | Indian Defense | 17 | 8/4/5 | 47.1% |
| E12 | Queen's Indian Defense | 15 | 1/8/6 | 6.7% |
| E01 | Catalan | 11 | 7/3/1 | 63.6% |
| E70 | King's Indian Defense | 11 | 2/3/6 | 18.2% |
| A28 | English Opening: Reverse Sicilian | 10 | 5/1/4 | 50.0% |
| A35 | English Opening: Symmetrical | 10 | 3/3/4 | 30.0% |
| E94 | King's Indian Defense: Orthodox Variation | 9 | 2/5/2 | 22.2% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2022 | Alexei Shirov | 2,681 | Titled Tue Early | B23 |
| Mar 2022 | Rinat Jumabayev | 2,628 | Titled Tue Early | C00 |
| Apr 2022 | Velimir Ivic | 2,625 | Titled Tue Early | D03 |
| Mar 2022 | Alexey Dreev | 2,623 | Titled Tue Early | E61 |
| Dec 2022 | Dimitrios Mastrovasilis | 2,605 | ch-EU Blitz | B23 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2024 | 211 | 115.5 | 2,351 |
| ch-EU Blitz | 2022 | 35 | 22.5 | 2,415 |
| Ustron Open A | 2022 | 26 | 12.5 | 2,315 |
| chT-POL U20 | 2021 | 25 | 9.5 | 1,867 |
| ch-EU Rapid | 2022 | 19 | 12.5 | 2,469 |
| ch-POL U20 | 2020 | 18 | 8 | 1,955 |
| POL-chT 1st League | 2023 | 18 | 11.5 | 2,386 |
| ch-EU U18 blitz | 2024 | 18 | 10.5 | 2,295 |
Interactive opening tree from all 741 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Iwo Karolczuk's chess games?
741 games by Iwo Karolczuk, from Jun 2015 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Iwo Karolczuk has played.
What does Iwo Karolczuk play on the first move as White?
Across 376 games with White in our database, Iwo Karolczuk opens with 1.e4 (46% of games), 1.d4 (38% of games), 1.Nf3 (9% of games). Against 1.e4 as Black, Iwo Karolczuk answers 1...c5 (69% of games), 1...e5 (14% of games), 1...e6 (9% of games). Against 1.d4: 1...Nf6 (98% of games), 1...e6 (2% of games), 1...d6 (1% of games).
What openings does Iwo Karolczuk play as White?
As White, Iwo Karolczuk's most-played openings in our database are: Catalan (31 games, 64.5% win rate); Sicilian: Closed (28 games, 71.4% win rate); Indian Defense (21 games, 38.1% win rate). The full breakdown of 376 games with White is in the table above.
What openings does Iwo Karolczuk play as Black?
As Black, Iwo Karolczuk most often plays: Sicilian (47 games, 38.3% win rate); Sicilian: Najdorf (37 games, 54.1% win rate); Sicilian: Moscow Variation (23 games, 43.5% win rate). See the table above for the top ten Black openings across 365 games.
What is Iwo Karolczuk's FIDE rating?
Iwo Karolczuk is currently rated 2,373 in classical chess, 2,383 in rapid and 2,361 in blitz. Peak classical rating: 2,406 (Aug 2025).
How many games has Iwo Karolczuk played?
Our database contains 741 games by Iwo Karolczuk, covering Jun 2015 to Aug 2026. Overall record: 337 wins, 187 draws, 217 losses (45.5% win rate).
How do I prepare against Iwo Karolczuk?
741 games by Iwo Karolczuk reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.